Intelligence quotient. My entire family is geniuses. I'm am autistic savant. My wife is a major scientist. I married a genius intentionally. We read the book "Bring up a genius" and it works. My daughter is 8 and has two businesses. She tested off the charts. My son is turning five this year and he can play chess without a board already. Genes. We are our genes. And we can affect and change them after birth. I know this because my wife's personal friend and colleague discovered this at UAB while studying fears passed on from the mother to the offspring. Sorry about your wife.